F. A. Davidson

Reciprocal sharing of extracellular proteases and extracellular matrix molecules facilitates Bacillus subtilis biofilm formation

This study shows that extracellular proteases and matrix molecules interact to influence biofilm formation in Bacillus subtilis, with proteases supporting biofilm even when nitrogen is freely available.

Extracellular proteases are an essential public good supporting Bacillus subtilis growth through exogenous protein degradation

This study shows that extracellular proteases in Bacillus subtilis act as a public good to degrade polymeric proteins, supporting growth and revealing a public good dilemma in nutrient-poor environments.

Systematic microscopical analysis reveals obligate synergy between extracellular matrix components during Bacillus subtilis colony biofilm development

The paper uses time-lapse imaging to study Bacillus subtilis biofilm development, showing that extracellular matrix components work together to enable structural features and growth.

A theoretical framework for multi-species range expansion in spatially heterogeneous landscapes

This paper develops a theoretical framework to study multi-species range expansion in heterogeneous landscapes, showing how competition dynamics and expansion area depend on initial population density and landscape structure.

Founder cell configuration drives competitive outcome within colony biofilms

The paper shows that founder cell location and density determine competitive outcomes in biofilms, with spatial dynamics being the main driver of strain abundance.